Microscope



L. B. HALL ET AL Oct. 1a, 1938.

MICROSCOPE Filed July 8, 1936 FIG. 2

LEIGH B. HALL HENRY F. KURTZ Patented Oct. 18, 1938 2,133,509

MICROSCOPE Leigh B. Hall and Henry F. Kurtz, Rochester, N. Y., assignors to Bausch & Lomb Optical Company, Rochester, N. Y., a corporation of New York Application July 8, 1936, Serial No. 89,603

3 Claims. (01. 88-39) The present invention relates to microscopes laterally and will thus clear objects such as culand more particularly to binocular microscopes ture dishes on the stage of the microscope. of variable power. From the foregoing, it will be apparent that we.

One of the objects of the present invention is are able to attain the objects of our invention 5 to provide a new and improved means for varyand provide a microscope having an improved obing the power of a binocular microscope. A furjective changing system in which the objectives ther object is to provide a multiple objective move so as not to interfere with objects on the mounting means for binocular microscopes in stage of the microscope. Various modifications which the objectives move so as not to interfere can, of course, be made without departing from with large specimens such as culture dishes or the the spirit of our invention or the scope of the 10 like. These and other objects and advantages reappended claims.

side in certain novel features of construction, ar- We claim: rangement and combination of parts as will here- 1. In a microscope a support, an ocular carried inafter be more fully set forth and pointed out by said support, a body member carried by said in the appended claims. support beneath said ocular, a track on the lower 15 Referring to the drawing: surface of said body member, said track being Fig. 1 is a side elevation of a microscope emlongitudinally inclined at a substantial angle and bodying this invention with parts in section. transversely perpendicular to the optical axis of Fig. 2 is a section taken on line 22 of Fig. 1. the ocular, an objective carrier slidably mounted In the embodiment illustrated I0 indicates a on said track, said objective carrier having a plu- 20 support which is vertically adjustable on a base rality of guides in parallel stepped relation, peras is well known to those skilled in the art. Sependicular to the optical axis of the ocular, and cured on the upper end of the arm I!) are two a plurality of objective lenses of different meprism housings II and two eye pieces II. The chanical lengths, the longest lens being mounted particular structure of the prism systems in the in the highest guide. 25 housings I I forms no part of the present inven- 2. In a microscope, a support, an ocular carried tion and they y be of y W known typ by said support, a body member carried by said sileh a t at disclosed in Patent 1,225,167 support beneath said ocular, a track on the lower issued May 8, 1917, to W. L. Patterson et a1. surface of said body member, said track being Beneath the prism housings I I, the arm III has longitudinally inclined at a substantial angle and 30 a dove tailed guide I2 the forward member of transversely perpendicular to the optical axis of which s Preferably P v y e removable Plate the ocular, an objective carrier slidably mounted gib as is Well known in e a t- A b y on said track, said objective carrier having ,a plumember i4 is removably mounted in the guide rality of guides in parallel stepped relation, per- I2 and, in the embodiment shown, this member I4 pendicular to the optical axis of the objective, 35 is a hollow casting provided with two apertures I 5 and means for detachably securing objective in alignment with the optical axis of the prism lenses in said guides. ystems in the housings II. The bottom of the 3. Abinocular microscope comprisingasupport, body member I4 is formed as an inclined dove a pair of oculars mounted on said support with 40 tailed track I6 with the removable plate or g b their optical axes lying in a single plane, a body 40 Il preferably forming one side thereof. member carried by said support, a track on the An objective carrier I8 is slidably mounted in lower surface of said body member, said track the t a and has a plurality of guides I9 in being longitudinally inclined and transversely spaced, parallel stepped planes. Each of the perpendicular to the plane of said axes, an obguides I9 is of dove tailed form and preferably jective carrier slidably mounted on said track, 4 has one side formed by a removable plate or gib said objective carrier having a plurality of guides 20. In microscopes of this type, the objectives 2| in parallel stepped relation longitudinally and are of different lengths. According to the present transversely perpendicular to the plane of said invention, the longest objective 2| is placed in axes, means for detachably securing a mount in the highest guide I9 and the shortest objective each guide, and means for securing a pair of 50 2| in the lowest guide I9. Thus, when the objecmatched objectives in each guide, said objectives tive carrier I8 is moved to bring the different being mounted one on the optical axis of each objectives into alignment with the optical axis of ocular. the prism systems in the housings I I, the longer LEIGH B. HALL.

objectives will be moved vertically as well as HENRY F. KURTZ. 

